A Revision of the Ordovician Bryozoan Genera Batostoma, Anaphragma, and Amplexorpera. Smithsonian Miscellaneous Collections. Vol. 140, No. 5 (end of volume)
Boardman, Richard S.

Wash: Smithsonian Institution, 1960, 28pp + 7 plates Original wraps, very good, near fine. *Uncut* (Item ID: 3458)

$15.00